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Finding the Fourth Proportional to 710.25, 981.03 and 684.96

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Solution

The fourth proportional to 710.25, 981.03 and 684.96 is: 946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.25 : 981.03 = 684.96 : x
  2. Step 2: Convert to fraction form
    710.25/981.03 = 684.96/x
  3. Step 3: Cross multiply
    710.25x = 981.03 × 684.96
  4. Step 4: Simplify right side
    710.25x = 671,966.31
  5. Step 5: Solve for x
    x = 671,966.31/710.25
  6. Step 6: Final answer
    x = 946.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.